Firefox Has Integrated Brave's Adblock Engine (itsfoss.com)

268 points by nreece 10 hours ago

evilpie 4 hours ago

> The Firefox team is experimenting with ways to improve the built-in Enhanced Tracking Protection feature in Firefox. This is one of the libraries we're going to experiment with.

> - We are not, and have no plans to abandon MV2 extensions. This will ensure certain types of add-ons, like ad-blockers, continue to work best in Firefox.

> - Firefox supports several ad-blockers as add-ons on Desktop and Android, including uBlock Origin.

> - We are not bundling Brave's ad-blocking system, we're testing one of their open source Rust components to improve how Firefox processes tracker lists.

https://www.reddit.com/r/firefox/comments/1sttf82/firefox_wi...

This is what the official Firefox account had to say when this came up on reddit.

heresie-dabord 2 minutes ago

From TFA:

> The browser now ships adblock-rust, Brave's open source Rust-based ad and tracker blocking engine.

It makes sense that Mozilla would test this. The amount of Rust code in Firefox is already at 12%.

https://4e6.github.io/firefox-lang-stats/

Google has said that a large percentage of Chrome vulnerabilities are related to memory (un)safety.

lxgr 4 hours ago

> This will ensure certain types of add-ons, like ad-blockers, continue to work best in Firefox.

Oof, so even people that should really know better are now equating MV3 with "no more ad blocking"? I think at this point the entire thing just needs to be renamed.

(Only Chrome removed the request blocking API from their MV3 implementation; Firefox did not.)

jeroenhd 3 hours ago

The people who know better should also know that tech social media was flooded with people not knowing what they were talking about mentioning manifest versions.

It wouldn't be the first time tech gossip rags would take something Mozilla did out of proportion to make outrage videos about that become a hit on Reddit.

When Mozilla added some weird AI thing (I think it was page summaries?) I was asked by people whose algorithm picked up this nonsense whether it'd be better for their privacy to switch back to Chrome or Edge.

stavros 3 hours ago

Did Vivaldi? Or Brave? Will uBlock work properly with Mv3 and request blocking?

lxgr 3 hours ago

Steve6 8 hours ago

I migrated from Firefox to Brave years ago, and it's been incredible. It's easy to turn off the crypto stuff and turn on more advanced privacy protection. Then it's just a fast browser with awesome adblocking.

My favorite recent feature has been Brave Scriptlets, which are just little javascript functions you can run on specific sites. I've replaced most of the add ons I used with small scripts. Pretty nice.

I would prefer an engine not built on Chromium... but I've lost faith in Mozilla. I'm glad that Firefox added a built in adblock engine, but it seems too late too late. Brave has been awesome, and being Chromium based gives them time to keep working on stuff that matters.

PufPufPuf 3 minutes ago

So like... Google Chrome with adblocker and Tampermonkey bundled? Just need to disable the cryptocurrency stuff? You don't really make it sound good.

abdullahkhalids 7 hours ago

The Greasemonkey Firefox addon that allows you to run site specific JS has been around for two decades [1].

[1] https://www.greasespot.net/2005/03/

Brybry 6 hours ago

And they even have a name: userscripts! [1]

Chrome also used to natively support userscripts back in 2010 [2] but they mostly killed it off

[1] https://en.wikipedia.org/wiki/Userscript

[2] https://lifehacker.com/chrome-4-supports-greasemonkey-usersc...

halapro 6 hours ago

It certainly is great to have first-party support for such a simple feature. It doesn't have to support the whole GM_ API

nananana9 4 hours ago

"The first thing you have to do is to turn off the cryptocurrency stuff."

Fantastic first impression. I'm good, thanks.

NoboruWataya an hour ago

Can you imagine the absolute boiling rage in these comments if Firefox implemented the same kind of opt-out "crypto stuff".

homebrewer an hour ago

aucisson_masque 3 hours ago

Lol. That's actually pretty bad for a web browser.

vachina 6 hours ago

I don’t see how supporting Chromium is better than not supporting an alternate rendering engine. Firefox for the end-user is fantastic.

eduction 6 hours ago

People build on chromium for the same reason they build on Linux. I’d personally prefer if they built on illumos or bsd but at a certain point people would rather spend their innovation budget higher up the stack and benefit from the platform that has the most open source engineers working on it.

dlcarrier 7 hours ago

It's too bad that Mozilla does everything they can to alienate its users, with failed attempts to attract a different but non-existent new user-base. Without them, and with Safari being run by a company that likes to tie its software to its hardware, there's pretty much no reasonable non-Chrome-based web browsers, so it's the new Internet Explorer, and many web pages only work on it, because no one tests their web pages on anything else.

jeroenhd 2 hours ago

People online rant about Firefox all the time for adding stuff Google and Microsoft shoved into their Chromium forks a few years ago, but when they do it the response is always "well what did you expect from <x>" while when Mozilla does it, the response is "this is an outrage, I'm switching to <some browser that already has the shitty feature anyway>".

I don't think there is or ever will be a "new internet explorer". If your page works in Chrome, there's a 99% chance it'll work in Firefox and Safari. Web standards have been unified to the point painting and layout algorithms are now part of the spec. It's why Ladybird managed to get a decently compatible engine in an extremely short time frame.

Latty an hour ago

search_facility 3 hours ago

With current standartization the issue of "page not working on non-Chrome browser" is non-existent. Thanks god nowadays everything (pages) work everywhere in very similar manner, I am using chrome, firefox, safary and opera and have zero problems last 5+ years. Old days are gone.

unethical_ban 5 hours ago

I simply have no idea why people hate on Firefox so much. I mean it, it feels like an outlet for frustration toward an org people think might listen.

esperent 8 hours ago

Even better now that they have a paid offering with all that crap stripped out (Brave Origin) which is free on Linux.

pogue 8 hours ago

Everyone has made these Brave debloat tools that basically do the same thing as their ridiculous Origin offering.

To sell for $60 a web browser that technically has all the features removed is a pretty goofy move.

topspin 6 hours ago

esperent 6 hours ago

cr125rider 8 hours ago

armada651 7 hours ago

> It's easy to turn off the crypto stuff

I'm living under a rock, but my first thought was that you turned off TLS.

dlcarrier 7 hours ago

Instead of turning it off, you can just make it useless: https://youtu.be/M1si1y5lvkk

the-grump 7 hours ago

If your mind goes to TLS when you read crypto, you surely do live under a rock ... in bliss.

devsda 7 hours ago

As a developer, personally I would be worried if that wasn't my first thought when someone uses browser and crypto together :D

Markoff 5 hours ago

Why not Cromite (or Ultimatum, Helium)? Hard to understand why someone reading HN use browser without extensions support.

Daedren an hour ago

I don't think the parent poster is talking about Android.

jasonvorhe 3 hours ago

Do any of them support sync ootb, selfhosted?

charcircuit 5 hours ago

Brave has extensions support. You can get them from the regular chrome store for them.

Zardoz84 5 hours ago

uBlock Origin was and is the BEST adblock. And it was one of the fist suggested add-ons when you get in the add-ons page. It should have been integrated.

jasonvorhe 3 hours ago

But Brave was founded by someone who donated 8k in favor of a conservative anti gay legislation instead of going straight for Epstein island stuff so you're already half a fascist for using Brave, so better not run it on a Framework computer using Omarchy or the transition will be complete and your right arm will keep on twitching.

At least that's the nonsense you hear when you recommend Brave as a decent alternative to someone.

jeroenhd 2 hours ago

Brave being led by an absolute asshole does indeed make it less palatable as a main browser to me. It's on the list, right after the crypto stuff and the full page ads on the new tab screen that are enabled by default.

It's still the best Chromelike that's easily available, but I'm not switching my default any time soon.

eknkc 2 hours ago

trueno 4 hours ago

i've never known what to think about brave because it was being pitched by cryptocurrency bros so i've always ignored its existence. who are these guys and is it genuinely good software?

devsda 9 hours ago

I hope this isn't a precursor to removing support for other AdBlock addons(MV2) citing native availability of an AdBlock engine and then gradually shift to acceptable ads etc.

OsrsNeedsf2P 9 hours ago

The day Firefox drops MV2 is the day I find a new browser. We're already at <1% usershare, it's not like there's safety in numbers here

lxgr 4 hours ago

What exactly is your gripe with MV3?

Many people seem to treat it synonymously with "no more procedural request blocking", but that's not a thing Mozilla ever did:

> For Manifest V3 extensions, Chrome no longer supports the "webRequestBlocking" permission (except for policy-installed extensions). Instead, the "webRequest" and "webRequestAuthProvider" permissions enable you to supply credentials asynchronously. Firefox continues to support "webRequestBlocking" in Manifest V3 and provides "webRequestAuthProvider" to offer cross-browser compatibility.

The permission model also seems much more reasonable (less permissions have to be requested upfront at install time) than MV2, so I actually hope Firefox does deprecate it at some point.

https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/Web...

https://blog.mozilla.org/en/firefox/firefox-manifest-v3-adbl...

michaelt 27 minutes ago

ximm 6 hours ago

Firefox supports webRequestBlocking with MV3, so even if they fully remove support for MV2, ad blocking is still available.

TiredOfLife 4 hours ago

pogue 8 hours ago

I'd be genuinely curious what you could switch to that still has MV2 because, AFAIK, Firefox is the last holdout.

Brave still allows you to install uBlock & some other extensions that should technically not be supported under MV3, but they still ship it with support for those.

Just heard about Helium browser, which is just dechromium + uBlock and it's still beta.

feverzsj 2 hours ago

raudette 31 minutes ago

Pay08 4 hours ago

cookiengineer 8 hours ago

nuker 7 hours ago

globalnode 3 hours ago

If Raymond Hill says blocking doesnt work anymore, ill use... umm... Lynx?

zephyreon 9 hours ago

Could definitely be writing on the wall that MV2 support will be deprecated in the future but imo not necessarily a bad thing if it’s not actively developed anyways. Maintaining both MV2 & MV3 support isn’t easily sustainable long term when you factor in the need to prioritize other features.

That said, if this is writing on the wall I’d hope they’ll listen to the community this time and allow the engine to be extended / make it such that a block all ads feature always exists. I’m cautiously optimistic given Mozilla’s track record just over the past year-ish. They have released some great new features that help bring Firefox closer to feature parity with other browsers.

I am a Firefox hopeful and recently switched back to using it as my daily driver when Arc went belly up (but mainly for uBlock Origin support).

charleslmunger 8 hours ago

>Maintaining both MV2 & MV3 support isn’t easily sustainable long term when you factor in the need to prioritize other features.

There is no feature Firefox provides that is more differentiating than ublock origin. As long as pages load and security issues are patched it is the reason to choose Firefox as a browser. What would they prioritize over it?

lxgr 4 hours ago

zephyreon 8 hours ago

tosti 6 hours ago

Why does everything have to be "actively developed"? Sometimes a program is just done. Better not touch it. I actually do downgrade packages when "actively developing" causes regressions. Not curl or anything sensitive like that, but local programs definately yes.

In case of the extension manifest, that's probably layered on top of the JS engine which does get attention and scrutiny. It's not like an API needs to be updated. If you'd always do that, nothing would ever be interoperable and we'd likely have a hard time trying to communicate.

Dylan16807 8 hours ago

> Maintaining both MV2 & MV3 support isn’t easily sustainable long term when you factor in the need to prioritize other features.

The feature that better adblockers need is one callback that's similar to one that's still in V3. It's not difficult to keep if it's your own codebase.

striking 8 hours ago

Try Zen! Firefox fork with Arc-like UX.

pjjpo 7 hours ago

userbinator 6 hours ago

As long as MITM proxies still work (which is something that Enterprise customers demand --- even the notoriously-closed Chrome needs to), it will always be possible to filter pages outside of any browser. I've been using one for over 2 decades and it works in any browser.

However, I am also concerned that this is an "embrace extend extinguish" move.

6ak74rfy 5 hours ago

Tell me more, what's your setup.

I use uBlock Origin in Firefox and network ad blocker. Wondering what other options are there.

spockz 4 hours ago

lxgr 4 hours ago

What would prevent sites from just injecting ads into their content server-side? You'll always need both element and request blocking.

ajb 3 hours ago

elros 28 minutes ago

I stopped paying attention when the major browsers started to act somewhat against the interests of ad-blocking add-ons, some years ago.

Would anyone who has kept up let me know what would be the 2026 "industry standard" in terms of an ad-blocking and privacy stack?

I primarily use Chrome on Mac and Safari on iPhone but I'm willing to change browsers for better ad-blocking and privacy.

I would also be interested in solutions that scale beyond a single machine, for when I'm at home (e.g. should I get a little box and use it as an ad blocker between my internet my router and my network or something?)

MrAlex94 8 hours ago

I think people are reading into this too much - I don’t think Mozilla would ever implement an actual full spectrum ad blocker (although who knows with the new direction Firefox is headed), this will likely be used as an improvement/replacement for the current tracking protection implementation.

Weirdly enough, the same time this was added to Geckko is when I started implementing the adblock-rs library for Waterfox - I stumbled across the bindings by accident when using searchfox on the main branch instead of esr140! Quite the coincidence doing it at the same time.

gbil 8 hours ago

If this means that they release a iOS version with the same Adblock features as brave then I’m sold. I use essentially all OSs and I want a browser with basic features like adblocking/custom filters on all the platforms and currently Firefox fails this on iOS devices. Still I believe the Firefox sync is much more robust than eg. Brave one , among various platforms. But then I will also need Firefox to fix keyboard shortcuts on Android which they had until the Fenix rebase some years ago and still haven’t fixed since

bartvk 5 hours ago

Same, I'd love for the iOS version to be a little more developed. Especially support for plugins for dark mode and stuff. Safari for iOS does.

mmooss 6 hours ago

What is the use case for keyboard shortcuts on handheld devices?

On desktops/laptops, keyboard shortcuts save reaching for a mouse, aiming (on the relativley large screen), and clicking. On handhelds, I don't think it's faster to use a shortcut than to simply tap something an inch away.

Also, on handhelds, the keyboard blocks a significant part of the screen. And keyboard shortcuts typically use accelerator keys, which are hard to use on handhelds.

Do you use Android with a physical keyboard?

gbil 2 hours ago

I use an Android tablet with detachable keyboard and works great also with Samsung DEX if you want something more for basic multitasking and there i want the shortcuts, I actually used it a lot, before firefox switched to Fenix base, for navigating tabs, opening closing them really really smooth but then....

JoshTriplett 6 hours ago

I have a physical keyboard for my foldable. Works great, except that keyboard shortcuts don't typically work as expected.

gbear605 6 hours ago

Could be referring to a physical keyboard attached to an iPad

catlikesshrimp 4 hours ago

Yes, I do, now on then. I started using a keyboard on handhelds with my palm m100, so I am not in the mayority.

nirui 4 hours ago

Great. Coming just in time when people think the "main stream" browsers are too boring.

I'm actually glad to see Mozilla has grown a little bit "predatorial" if it can bring good to the users. The implementation is polite too, as it lets you know there was an ad been muted.

There's a lot of things that can still be done in the browser space. For example, one-click login even without entering email, easy purchase without the website ever collecting your card number (or other financial detail beyond necessary), etc etc. Ads can also be improved too, by making them not violating nor annoying.

The possibilities are still great, I hope Mozilla can figure out a way to tap into it.

nextaccountic 9 hours ago

Does this benefit people that use uBlock Origin?

Maybe uBlock Origin for Firefox could be updated to make use of this

toofy 9 hours ago

sounds like it just uses ublocks lists.

though it doesn’t seem to work as well as ublock, the ad slots are still there with just the ad missing so there’s a giant ugly blank spot.

fabrice_d 8 hours ago

Probably because they don't leverage cosmetic filtering yet: https://docs.rs/adblock/latest/adblock/struct.Engine.html#me...

SadTrombone 5 hours ago

I'd imagine that's the reason it's not enabled by default, they're not finished fully implementing it in Firefox yet.

fishgoesblub 8 hours ago

It's surprising, and disappointing that this hasn't happened sooner. A real shame that it took a browser company other than Mozilla to make (In Rust no less!) adblock-rust. I wonder if this could've been a native Firefox feature and selling point years ago if Eich wasn't kicked out.

jasonvorhe 3 hours ago

I'm so glad Brave arose from all this overblown mess. What a solid product, one you disable the web3 crap. Using Firefox and derivatives feels like using a Java application on the desktop years ago. Every interaction seems foreign. Meh.

Markoff 5 hours ago

For anyone looking for Android alternative:

Cromite - Chromium, MV2 extensions, good new tab page with 4x4 shortcuts (2x4 pinnable) with direct access to bookmarks

https://github.com/uazo/cromite/releases

Ultimatum - Chromium, MV2 extensions, not so good new tab page similar to original Chrome with only like 4 shortcuts without swiping, limitec customization, no password manager AFAIR

https://github.com/gonzazoid/Ultimatum/releases

Helium - Chromium, only MV3 extensions, built in browser from Graphene

https://github.com/jqssun/android-helium-browser/releases

Elixir - Chromium, only MV3, tabbed interface suitable for tablets

https://github.com/SF-FLAM/ElixirBrowser/releases

Former Kiwi Browser, then for about year IceRaven (Firefox) user up until recently when they fckd up already bad illogical UI and made it even worse, which was the last drop to again give up on this users hating browser (will never forget users begged for 10 years so dear devs will implement simple pull down to refresh).

On desktop the recommendation is much easier:

Vivaldi - Chromium, MV2, no AI, amazing customization compared to primitive Brave, faster than FF

https://vivaldi.com

FireInsight 5 hours ago

Android Firefox versions that are geat as well - [Ironfox](https://github.com/ironfox-oss/IronFox): Hardened - [Fennec](https://f-droid.org/packages/org.mozilla.fennec_fdroid/): Fully FOSS

gtrevorjay 8 hours ago

This feels like a betrayal of their ousting of Eich in the first place. I can't imagine a world I would do this and be able to look at myself in the mirror.

dlcarrier 7 hours ago

The whole organization is a huge mess that doesn't really want to accept any management.

prox 6 hours ago

They try to make it feel like an “us” browser, but it just comes off as a corp trying to talk cool.

You have to walk the walk too Mozilla! Saying that as a FF for years.

Paul-Craft 7 hours ago

I can certainly imagine such a world. I don't use Brave because I don't want to support Brendan Eich.

jasonvorhe 3 hours ago

If he showed up in the Epstein files I'd stop using Brave. Until then, I'll keep on rolling my eyes whenever someone brings up this stuff from... 2008.

kulahan 6 hours ago

So instead you use, what, Chrome because you want to support Sundar Pichai??

JoshTriplett 6 hours ago

SadTrombone 5 hours ago

yborg 8 hours ago

>"their"

It's an entirely different management team.

silisili 5 hours ago

Same. The entire company more or less turned on him. Not picking a side, that's your right. But to then start 'borrowing' from someone you refused to work with feels... hypocritical.

Timon3 2 hours ago

Brendan Eich didn't personally write the code, and he doesn't benefit from Firefox using it. If anything this hurts him, since Firefox is catching up to an advantage of Brave without investing their own development resources.

No matter from what angle I look at this situation, your complaint makes no sense.

poisonborz 5 hours ago

Why do people still have hope in / clinge on Firefox when projects like Librewolf and Waterfox exists? Yes those are still dependent on Mozilla's upstream changes, but users not trusting them have still options.

jeroenhd 2 hours ago

Same reason people want Chromium to stay around: their forks will collapse within months if the free work from upstream stops happening.

Brave, Vivaldi, Opera, Tor Browser, Librewolf, they're all little more than reconfigurations and reskins of Chromium when you look at the entire code base. Yes, the Brave as block engine and Operas power saving modes are non-trivial, but the engine they're built on is the size of an operating system.

lxgr 4 hours ago

Maybe they're being realistic about how long these projects could survive without Mozilla doing all the work upstream?